Spring-controlled motor for operating fans or other similar devices.



D. DI CARLO.

SPRING CONTROLLED MOTOR FOR OPERATING FANS OR OTHER SIMILAR DEVICES.

APPLICATION FILED MAR. 11, 1911.

. 998 ,75? Patented July 25,1911.

2 SHEETSSHEET 1.

1M1"! 1 lllllll III! III I II 2 2 w 6% WM ZQ W'M O4. ATTORNEY IN VEN TOR D. DI CARLO.

SPRING CONTROLLED MOTOR FOR OPERATING FANS OR OTHER SIMILAR DEVICES.

APPLIOATIONTILED MAR. 11, 1911.

Patented July 25, 1911.

2 SHEETS-SHEET 2.

In I wuumi T 1 1 v t v w 1 ii Q WITNESSES A TTORNE Y mmw mm FFIOE.

DONATO DI CARLO, OF PHILADELPHIA, PENNSYLVANIA.

SPRING-CONTROLLED MOTOR FOR OPERATING FANS OR OTHER SIMILAR DEVICES.

Specification of Letters Patent.

Patented July 25, 1911.

Application filed March 11,1911. Serial No. 613,682.

for the defined purposes, in which the power or energy is stored up through the compres-' mechanism, embodying the main features of vsion of a spring; and in such connection my nvention relates 'to certain particular features in the constructive a'rrangementof the motor actuating mechanism.

The nature and scope of my said invention will be more fully understood from the following description taken in connection with the accompanying drawings forming part hereof, in Which- Figure I, is a front elevational view of a spring actuated motor arranged for operating particularly a blade fan; the said view in arrangement of the motor actuating my said invention. Fig. 2, is an enlarged fragmentary front elevational view of the motor of Fig. 1, but with the front plate removed, to expose internal working members thereof. Fig. 3, is a vertical central sectional view on the line as, w, of Fig. 2; and Fig. 4, is a fragmentary top or plan View of the motor, showing the stop-latch for the fan shaft so arranged as that when the hub of'the blade-fan is removed, the latch can be readily extended to engage a pin of the housing so as to prevent turning of said shaft.

Referring to the drawings, a is a housing for the actuating mechanism of the motor which housing is extended to provide a base at, having a series'of feet of. The r gc of the housing a, is .formed into a circular box a to receive a coiled spring a"; which is mounted on a cross-shaft a a, is a large gear wheel, mounted'on the shaft a, which is held thereon by means of a. collar a, provided with a set screw a to tighten the collar to position. 1

b, is themotor wlnding-shaft extending through the housing carrying a small gearwheel 6 meshing with the gear-wheel a.

6 is a ratchet-wheel, mounted on the shaft 6, but secured to and revolving with a large gear' wheel 6 pinned through a collar 5 to said shaft 7), as clearly shown in Fig. 3. The ratchet-wheel b is engaged by pawls or dogs 6 arranged on one side of the gear-wheel If, one of the pawls or dogs 6 holds the wheel '5 in position against reverse rotation of the shaft .7), while the other pawl or dog 71 on the oppositeside movably engages the gear-Wheel Z), to pre vent any tendency to retrograde movement of said wheel, subject to the influence of the windin s rin a of the motor. The said gear-wheel b", in turn meshes with a pinion e, on a cross-shaft c and upon which shaft is mounted a gear-wheel 0 The gear-wheel c, in turn meshes with and-rotates a pinion d, secured to ashaft al which carries a gear-Wheel 03 This gear-wheel d meshes with and rotates a pinion 6 mounted on a shaft 6 This shaft 6 extends through the housing a, and is slitted and in which is pivoted a shiftable stop-latch c arrangedv to engage a pin 6*, extending from the housing as shown in Fig. 4, so as to prevent rotation of the shaft 6 when the hub f, carrying at the outer end a blade-fan 7, or other appliance, is removed. The hub f, is held to the shaft 6 by a tightening screwbolt 6 as clearly shown in Fig. 3. On the winding-shaft b, in rear of the upper portion of the housing a, is arranged a pin 6 to engage a handle 9, having a sleeve 9 wherein is provided a bayonet cpnnection 9 to permit in connection with said pin of the shaft 6, to be rotated to wind up the energy storing spring a, in the box a On the back of the housing in the upper portion is arranged a manually operated pivotal handlever h, and within the housing is arranged a leaf-spring h, occupying normally a position, as shown between the pinions d and 0 as shown in Fig. 2. In the wall of the housing a, is provided an angular slot a", through which a pin h of the hand-lever engages the said leaf spring h to brake the fan-shaft to enable the speed of rotation of from said housing and adapted when said Copies 0! thispatent may be obtained for latch is manually extended to prevent rotation of said shaft, a coiled spring having means for permitting of energy'being stored up and mechanism controlled by said spring to revolve said slitted cross-shaft, when disshaft mounted in a housing having a slot formed in the upper portion thereof, ahand lever carrying a pin extendingthrough said slot, a spring controlled actuating gear and pinion mechanism for said shafts, a leaf spring arranged between certain ofthe pin ions of said mechanism 'andsaid hand-lever arranged to be manually operated to cause the pin thereof to frictionally engage said spring with said pinions to retard the speed of said fan-shaft or to stop the rotatio thereof. I v v In witness whereof, I have hereunto set my signature inthe presence of two subscribing witnesses.

DONATO DI CARLO.

Witnesses:

J. WAImEaDoUeLAss, THOMAS M. SMITH.

five cents each, by addressing the Commissioner of Patents,

' Washing-ton, 0. 

